1 files changed, 58 insertions, 0 deletions
diff --git a/layout/svg/SVGGFrame.cpp b/layout/svg/SVGGFrame.cpp
new file mode 100644
index 0000000000..92df721ffb
--- /dev/null
+++ b/layout/svg/SVGGFrame.cpp
@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Main header first:
+#include "SVGGFrame.h"
+
+// Keep others in (case-insensitive) order:
+#include "mozilla/dom/SVGElement.h"
+#include "mozilla/PresShell.h"
+#include "nsGkAtoms.h"
+#include "nsIFrame.h"
+
+using namespace mozilla::dom;
+
+//----------------------------------------------------------------------
+// Implementation
+
+nsIFrame* NS_NewSVGGFrame(mozilla::PresShell* aPresShell,
+                          mozilla::ComputedStyle* aStyle) {
+  return new (aPresShell)
+      mozilla::SVGGFrame(aStyle, aPresShell->GetPresContext());
+}
+
+namespace mozilla {
+
+NS_IMPL_FRAMEARENA_HELPERS(SVGGFrame)
+
+#ifdef DEBUG
+void SVGGFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
+                     nsIFrame* aPrevInFlow) {
+  NS_ASSERTION(aContent->IsSVGElement() &&
+                   static_cast<SVGElement*>(aContent)->IsTransformable(),
+               "The element is not transformable");
+
+  SVGDisplayContainerFrame::Init(aContent, aParent, aPrevInFlow);
+}
+#endif /* DEBUG */
+
+//----------------------------------------------------------------------
+// ISVGDisplayableFrame methods
+
+nsresult SVGGFrame::AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
+                                     int32_t aModType) {
+  if (aNameSpaceID == kNameSpaceID_None && aAttribute == nsGkAtoms::transform) {
+    // We don't invalidate for transform changes (the layers code does that).
+    // Also note that SVGTransformableElement::GetAttributeChangeHint will
+    // return nsChangeHint_UpdateOverflow for "transform" attribute changes
+    // and cause DoApplyRenderingChangeToTree to make the SchedulePaint call.
+    NotifySVGChanged(TRANSFORM_CHANGED);
+  }
+
+  return NS_OK;
+}
+
+}  // namespace mozilla